Alamofire 4 and special characters in JSON - ios

Question

I've got a problem with special characters with Alamofire 4.The JSON contains æ, ø and å and the browser shows them fine, also my previous solution using SwiftyJSON did.Alamofire 4 shows something like this instead:
U00e6
Using this call:
Alamofire.request(specificURL, method: .get, parameters: param, encoding: URLEncoding.default, headers: nil).responseJSON { (response: DataResponse<Any>) in
print(response)
}
What to do to solve this?

Answer 1

Edit:
Alamofire.request(url, method: .get, parameters: param, encoding: JSONEncoding.default)
.responseJSON { response in
switch response.result {
case .success(let value) :
print(response.request) // original URL request
print(response.response) // HTTP URL response
print(response.data) // server data
print(response.result) // result of response serialization
if let JSON = response.result.value as! [String:AnyObject]!{
print("JSON: ",JSON)
self.arrUser = Mapper<Users>().mapArray(JSONArray:JSON["user"] as! [[String : Any]])!
self.tableView.reloadData()
}
case .failure(let encodingError):
//Print error
}
}
I got the issue that I have added æ in json response and try to print.
Output:
JSON: Optional(<__NSArrayI 0x600000050320>(
{
"email_address" = "testwts06#gmail.com";
username = "testwts06 \U00e6";
},
{
"email_address" = "testwts01#gmail.com";
username = "testwts01 \U00eb";
},
{
"email_address" = "testwts100#gmail.com";
username = testwts100;
})
While displaying it display in correct format.

Answer 2

Swift 3 update for Ekta's answer:
let encodedURL = specificURL.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)

Answer 3

Seems the typical serialization error due to wrong JSON encoding, probably your response status code is 3840.
JSON text SHALL be encoded in UTF-8, UTF-16, or UTF-32.
You could try to convert the response data to correct UTF8 encoding:
let datastring = NSString(data: response.data!, encoding: String.Encoding.isoLatin1.rawValue)
let data = datastring!.data(using: String.Encoding.utf8.rawValue)
do {
let object = try JSONSerialization.jsonObject(with: data!, options: .allowFragments)
let jsonDic = object as! NSDictionary
print(" ok, successfully converted..\(jsonDic)")
} catch let aError as Error {
// print and handle aError
}
Hope it helps you.

Answer 4

Here is a simple String extension that solves the issue:
extension String {
func fixUnicode() -> String {
var copy = self as NSString
let regex = try! NSRegularExpression(pattern: "\\\\U([A-Z0-9]{4})", options: .caseInsensitive)
let matches = regex.matches(in: self, options: [], range: NSMakeRange(0, characters.count)).reversed()
matches.forEach {
let char = copy.substring(with: $0.rangeAt(1))
copy = copy.replacingCharacters(in: $0.range, with: String(UnicodeScalar(Int(char, radix: 16)!)!)) as NSString
}
return copy as String
}
}